Counterbalances and weather strips or jambs



July 31, 1962 c. J. TEGGELAAR COUNTERBALANCES AND WEATHER STRIPS OR 'JAMBS Filed Sept. 12, 1960 2 Sheets-Sheet l COUNTERBALANCES AND WEATHER STRIPS OR JAMBS Y Filed Sept. 12, 1960 July 31, 1962 c. J. TEGGELAAR 2 Sheets-Sheet 2 INVENTOR./ C/auaed 7/07'e 00/ AT7'0RNEY.

United States Patent Mich.

Filed Sept. 12, 1960, Ser. No. 55,216 13 Claims. (Cl. 2052.4)

This invention relates to counterbalances and weather strips or jambs including such sash counterbalances.

The main objects of this invention are:

First, to provide a combined weather strip and counterbalance whioh may be assembled as a unit and is adapted to be installed as such.

Second, to provide a combined counter-balance and weather strip in which the counterbalance spring is adjustably supported on the weather strip member.

Third, to provide an assembled structure having these advantages in which the counterbalance unit is pivotally mounted at its upper end on the weather strip body or jamb member to permit limited lateral swinging movement of the counterbalance unit.

Fourth, to provide a counterbalance unit in which there is relatively little variation in the spring stress throughout the stroke of the supported sash.

Further objects relating to details and economies of the invention will appear from the description to follow. The invention is defined and pointed out in the claims.

A preferred embodiment of the invention is illustrated in the accompanying drawings, in which:

FIG. 1 is a fragmentary elevational view of a window structure comprising an upper and lower sash in closed position with parts broken away to show certain structural details and with certain of the parts shown conventionally.

FIG. 2 is an enlarged fragmentary horizontal section on a line corresponding to line 2-2 of FIG. 1.

FIG. 3 is a fragmentary perspective view of a combined weather strip and counterbalance embodying my invention, certain of the parts being shown conventionally. The lower portion of the weather strip being broken away.

FIG. 4 is an enlarged fragmentary view in horizontal section on a line corresponding to line 4-4 of FIGS. 3 and 5.

FIG. 5 is an enlarged fragmentary view in longitudinal section on a line corresponding to line 5-5 of FIG. 4 certain parts being shown in full lines.

FIG. 6 is an enlarged fragmentary view of a lower end portion of the counterbalance unit with the combined housing and weather strip member removed.

FIG. 7 is an enlarger fragmentary view partially in horizontal section on a line corresponding to line 7-7 of FIG. 5.

FIG. 8 is an enlarged fragmentary view on a line corresponding to line 88 of FIG. 5.

FIG. 9 is an enlarged fragmentary View on a line corresponding to line 9--9 of FIG. 5.

It will be understood that in the accompanying drawa 3,646,618 Patented July 31, 1962 weather strip body member designated generally by the numeral 7 and provided with outturned flanges 8 on its longitudinal edge which with integral parting strip- 9 provide two outwardly facing channels adapted to fittedly receive the edges of the sash as is illustrated in FIG. 2.

The weather strip body member 7 in the commercial embodiments extends the full length on the jamb of the window casing. The web 10 of the weather strip is provided with laterally spaced forwardly projecting longitudinal ribs 11. In the embodiment illustrated the weath-, er strip body member is mounted on the window casing by means of the supporting screw 12 arranged through the parting strip 9 but it will be understood that the mounting of the weather strip or body member maybe varied to meet varying installment conditions.

Each sash is provided with a counterbalance and as these are duplicates, a description of one will sufiice. The counterbalance unit comprises the body member 13 having inwardly facing way members 14 on its longitudinal edges. The width of this counterbalance body member 13 is substantially less than the spacing of the ribs 11 on the weather strip. (See FIGS. 4, 7 and 8.) This permits some lateral swinging movement of the counterbalance unit on its supporting stud 15 which projects forwardly from the web portion of the weather strip adjacent the upper end thereof and centrally between the ribs 11. (See FIG. 4.) The flanges of the counterbalance body member 13 terminate in spaced relation to the lower end thereof and the web portion is extended beyond the flanges and constitutes a tongue 16 which is engaged in the for wardly offset keeper 17 in the web of the weather strip. (See FIGS. 5 and 9.) The counterbalance spring 18 is supported at its upper end by the hanger 19 which is ad justably engaged within the flanges of the counterbalance body member 13.

The hanger 19 is slidably adjustable in the counter balance body member 13 and is provided with a latch or holder 20 selectively engageable with one of the lugs or keepers 21 struck up from the member 13, see FIG. 5. only two lugs 21 being illustrated in the accompanying drawing. The latch 20 is urged to and held in lug engaging position by the spring 22, one end of which is in an choring engagement with the hanger 19 and the other with the latch 20 urging it into lug engaging position as shown in FIG. 5. Pressure on the projecting end member 20 disengages it from the coacting lug. It should be understood ho-wever, that this adjustment feature isdesigned for adaptationto sashes of varying weight. The pulley supporting slide member 23 is slidably engaged within the flanges of the counterbalance body member 13 and has an upwardly projecting arm 24 with which the hook 25 on the lower end of the counter-balance spring .18 is en'- gaged. This slide member 23 is provided with a journal 26 on which the pulleys 27 and 28 are mounted, see FIGS. 3 and 5. Mounted on the lower end of the counterbalance member 13 is a cord anchor member 39 on which the journal 29 for the pulley 30 is mounted and to which the end'of the hanger cord 31 is attached at 32, see 5. One end of the hanger cord 31 is attached at 32 to the anchor member 39 and the cord successively rove around the pulleys 28, 3t and 27 and then through the eye 33 on the guide member 34 which is pivotally mounted on the pulley journal 29. The outer end of the cord is attached I to the sash engaging member 40. p

Mounted on the lower end of the counterbalance body member 13 is a forwardly projecting stop 35 for the' sash engaging member 49, see FIGS. 5, 8 and 9. This stop has an outwardly facing opening to permit the positioning of the cord thereon. It will be understood that .the sash engaging member 40 engages the stop only when the parts are assembled, as is illustrated in FIG. 3, but is adapted in use to engage the lower ends of the counterbalance sash.

As stated, the inner end of the hanger cord 31 is fixedly connected at 32 to the anchor member 3? and the cord is rove around the pulley 28 then around the pulley 3t) and then around the pulley 27, and is passed through the guide member 34 and its outer end attached to the sash engaging member 40. Such adjustment is commonly made before installation of the complete unit and before the installation of the sash. The hanger member 19 and its latch are guarded by the housing 36 so that the late is not accidentally or unintentionally released.

To adjust the counterbalance for sash of different weights, the latch of the hanger 19 is retracted from keeper engaging position by pressing inwardly on the latch, which permits the slidable adjustment of the hanger.

The housing 36 of inwardly facing channel is formed of springable material and is provided at its upper end with laterally projecting lugs 37 engaged with the flanges of the counterbalance body member (see FIG. 4) and with inwardly projecting lugs 38 engageable with the stop member 35, see FIG. 9. In the embodiment of my invention illustrated this housing 36 constitutes a Weather strip unit or member and projects into the groove in the sash, see FIG. 2.

The embodiment of my invention illustrated is, as stated, a combined weather strip and counterbalance, but where weather strips are not desired the body member of the counterbalance may be mounted directly upon the window casing or jamb. However, one of the large advantages of my invention is that it may be and is commercially embodied in a counterbalance and may be installed as a unit.

I have illustrated and described my invention in a highly practical embodiment thereof. I have not attempted to illustrate or describe other adaptations or embodiments which I contemplate, as it is believed this disclosure will enable those skilled in the art to embody or adapt my invention as may be desired.

I claim:

1. A weather strip and counterbalance for a sash having a grooved stile comprising a weather strip body member adapted to be mounted on a window casing having a forwardly facing sash receiving channel and having suspending means at its upper end permitting lateral swinging movement thereof when engaged with a window casing, the web of the body member having laterally spaced forwardly projecting ribs thereon, a counterbalance unit comprising a body member supportedly connected at its upper end to said weather strip body member for limited lateral swinging movement between said ribs thereof and having inwardly facing way members on its longitudinal edges, a spring hanger on said counterbalance body member, a coil spring supportedly connected at its upper end to said spring hanger, said counterbalance body member terminating at its lower end in a downwardly projecting tongue, said weather strip body member having a forwardly ofiset keeper with which said tongue is retainingly engaged and which permits limited lateral swinging movement of the lower end of said counterbalance body member, a pulley support and cord anchor member mounted on said counterbalance body member adjacent the lower end thereof and provided with a pulley, a pulley slide member slidably engaged with said counterbalance body member and suspendingly connected to the lower end of said counterbalance spring and provided with pulleys, a sash engaging member, a sash hanger cord rove upon said pulleys on said pulley slide and anchor members and connected at one end to said sash engaging member and at its other end to said pulley support and cord anchor member, said pulley support and anchor member having a laterally swingable guide thereon through which said cord is rove, said counterbalance body member being provided at its lower end with a forwardly projecting forwardly opening stop member for said sash engaging member and through which said cord is disposed, and a combined counterbalance unit housing and weather strip member of inwardly facing channel section having outwardly projecting lugs at its upper end releasably engageable within the upper end of said counterbalance body member and inwardly projecting lugs at its lower end releasably engageable with said stop member.

2. A weather strip and counterbalance for a sash having a grooved stile comprising a weather strip body member adapted to be mounted on a window casing having a forwardly facing sash receiving channel, a counterbalance unit comprising a body member supportedly connected to said weather strip body member and having inwardly facing way members on its longitudinal edges, a spring hanger on said counterbalance body member, a coil spring supportedly connected at its upper end to said spring hanger, a pulley support and cord anchor member mounted on said counterbalance body member adjacent the lower end thereof and provided with a pulley, a pulley slide member slidably engaged with said counterbalance body member and suspendingly connected to the lower end of said counterbalance spring and provided with pulleys, a sash engaging member, a sash hanger cord rove upon said pulleys on said pulley slide and anchor members and connected at one end to said sash engaging member and at its other end to said pulley support and cord anchor member, said pulley support and anchor member having a laterally swingable guide thereon through which said cord is rove, said counterbalance body member being provided at its lower end with a forwardly projecting forwardly opening stop member for said sash engaging member and through which said cord is disposed, and a combined counterbalance unit housing and Weather strip member of inwardly facing channel section having outwardly projecting lugs at its upper end releasably engageable within the upper end of said counterbalance body member and inwardly projecting lugs at its lower end releasably engageable with said stop member.

3. A weather strip and counterbalance for a sash having a grooved stile comprising a weather strip body member adapted to be mounted on a window casing having a forwardly facing sash receiving channel, a counterbalance unit comprising a body member supportedly connected to said weather strip body member and having inwardly facing way members on its longitudinal edges, said counterbalance body member having vertically spaced forwardly projecting lugs at the upper end thereof. a spring hanger slidably adjustable on said counterbalance body member and provided with a springably supported holder selectively engageable with said lugs thereon, a coil spring supportedly connected at its upper end to said spring hanger, a pulley support and cord anchor member mounted on said counterbalance body member adjacent the lower end thereof and provided with a pulley, a pulley slide member slidably engaged with said counterbalance body member and suspendingly connected to the lower end of said counterbalance spring and provided with pulleys, a sash engaging member, a sash hanger cord rove upon said pulleys on said pulley slide and anchor members and connected at one end to said sash engaging member and at its other end to said pulley support and cord anchor member, said pulley support and anchor member having a laterally swingable guide thereon through which said cord is rove, said counterbalance body member being provided at its lower end with a forwardly projecting forwardly opening stop member for said sash engaging member and through which said cord is disposed, and a combined counterbalance unit housing and weather strip member of inwardly facing channel section having outwardly projecting lugs at its upper end releasably engageable within the upper end of said counterbalance body member and inwardly projecting lugs at its lower end releasably engageable with said stop member.

4. A weather strip and counterbalance for a sash hav- Phi ing a grooved stile comprising a weather strip body member adapted to be mounted on a window casing, a counterbalance unit comprising a' body member supportedly connected at its upper end to said weather strip body member and having spaced inwardly facing way members on its longitudinal edges, said counterbalance body member having vertically spaced forwardly projecting lugs at the upper end thereof, a spring hanger slidably adjustable on said counterbalance body member and provided with a holder selectively engageable with said lugs, a coil spring supportedly connected at its upper end to said spring hanger, a pulley support and cord anchor member mounted on said body member adjacent the low er end thereof and provided with a pulley, a pulley slide member slidably engaged with said counterbalance body member and suspendingly connected to the lower end of said counterbalance spring and provided with pulleys, a sash engaging member, and a cord rove upon said pulleys and connected at one end to said sash engaging member and at its other end to said pulley support and cord anchor member, said counterbalance body member being provided at its lower end with a stop member for said sash engaging member.

5. A weather strip and counterbalance for a sash having a grooved stile comprising a weather strip body mem ber adapted to be mounted on a window casing, a counterbalance .unit comprising a body member supportedly connected at its upper end to said Weather strip body member and having spaced inwardly facing way members on its longitudinal edges, a spring hanger on said counterbalance body member, a coil spring supportedly connected at its upper end to said spring hanger, a pulley support and cord anchor member mounted on said body member adjacent the lower end thereof and provided with a pulley, a pulley slid-e member slidably engaged with said counterbalance body member and suspendingly connected to the lower end of said counterbalance spring and provided with pulleys, a sash engaging member, and a cord rove upon said pulleys and connected at one end to said sash engaging member and at its other end to said pulley support and cord anchor member, said counterbalance body member being provided at its lower end with a stop member for said sash engaging member.

6. A weather strip and counterbalance for a sash having a grooved stile comprising a weather strip body member adapted to be mounted on a window casing and having suspending means at its upper end permitting lateral swinging movement thereof when engaged with a window casing, a counterbalance unit comprising a body member supportedly connected at its upper end to said weather strip body member for limited lateral swinging movement and having spaced inwardly facing way members on its longitudinal edges, a spring hanger on said counterbalance body member, the lower end of said counterbalance body member being retainingly and swingably engaged by said supporting body member, a pulley support and cord anchor member mounted-on said body member adjacent the lower end thereof and provided with a pulley, a pulley slide member slidably engaged with said counterbalance body member and suspendingly connected to the lower end of said counterbalance spring and provided with pulleys, a sash engaging member, and a cord rove upon said pulleys and connected at one end to said sash engaging member and at its other end to said pulley support and cord anchor member, said counterbalance body member being provided at its lower end with a stop member for said sash engaging member.

7. A weather strip and counterbalance for a sash having a grooved stile comprising a weather strip body member adapted to be mounted on a window casing and having suspending means at its upper end permitting lateral swinging movement thereof when engaged with a window casing, a counterbalance unit comprising a body member supportedly connected at its upper end to said weather 6 strip body member for limited lateralswinging movement and having spaced inwardly facing way members on its longitudinal edges, a spring hanger on said counterbalance body member, the lower end of said counterbalance body member being retainingly and swingably engaged by said supporting body member, a pulley support and cord anchor member mounted on said body member adjacent the lower end thereof and provided with a pulley, a pulley slide member slidably engaged with said' counterbalance body member and suspendingly connected to the lower end of said counterbalance spring and provided with pulleys, a sash engaging member, and a core rove upon said pulleys and connected at one end to said sash engaging member and at its other end to said pulley support and cord anchor member, said pulley support and anchor member having a laterally swingable guide thereon through which said cord is rove, said counterbalance body member being provided at its lower end with a stop member for said sash engaging member.

8. 'A weather strip and counterbalance for a sash having a grooved stile comprising a weather strip body member adapted to be mounted on a window casing and having suspending means at its upper end permitting lateral swinging movement thereof when engaged with a window casing, a counterbalance unit comprising abody member supportedly connected at its upper end to said weather strip body member for limited lateral swinging movement and having spaced inwardly facing way members on its longitudinal edges, a spring hanger mounted on said counterbalance body member for vertical adjustment thereon, the lower end of said counterbalance body being retainingly and swingably engaged by said supporting body member, a counterbalance spring supportedly connected at its upper end to said spring hanger, a pulley support and cord anchor member mounted on said counterbalance body member adjacent the lower end thereof and provided with a pulley, a pulley slide member slidably engaged with said counterbalance body member and suspendingly connected to the lower end of said counterbalance spring and provided with pulleys, a sash engaging member, a cord rove upon said pulleys and connected at one end to said pulley support and cord anchor member and at its other end to said sash engaging member, said pulley support and anchor member having a laterally swingable guide thereon through which said cord is rove, said counterbalance body member being provided at its lower end with a stop member for said sash engaging member.

9. A weather strip and counterbalance for a sash having a grooved stile comprising a weather strip body rnem- I ber adapted to be mounted on a window casing, a counterbalance unit comprising a body member supportedly connected to said weather strip body member and having spaced inwardly facing way members on its longi tudinal edges, a spring hanger mounted on said counterbalance body member for vertical adjustment thereon,

a counterbalance spring supportedly connected atvits upper end to said spring hanger, a pulley support and 'cord anchor member mounted on said counterbalance ing member. l

10. A weather strip and counterbalance for a sash having a grooved stile comprising a weather strip body member adapted to be mounted on a window casing, a counterbalance unit comprising a body member supportedly connected to said weather strip body member and having spaced inwardly facing way members on its longitudinal edges, a spring hanger mounted on said counterbalance body member for vertical adjustment thereon, a counterbalance spring supportedly connected at its upper end to said spring hanger, a pulley support and cord anchor member mounted on said counterbalance body member adjacent the lower end thereof and provided with a pulley, a pulley slide member slidably engaged with said counterbalance body member and suspendingly connected to the lower end of said counterbalance spring and provided with pulleys, a sash engaging member, a cord rove upon said pulleys and connected at one end to said pulley support and cord anchor member and at its other end to said sash engaging member, said counterbalance body member being provided at its lower end with a stop member for said sash engaging member, and a counterbalance unit housing of inwardly facing channel section releasably engaged with said counterbalance body member.

11. A counterbalance for a sash having a grooved stile comprising an elongated body member adapted to be mounted on a window casing and having inwardly facing way members on its longitudinal edges, a spring hanger slidable on said body member within said flanges, said body member having vertically spaced lugs thereon, a spring hanger slidably engaged within said flanges and selectively engageable with said lugs, a coil spring supportedly connected at its upper end to said spring hanger, a pulley support and cord anchor mounted on said body member adjacent the lower end thereof and provided with a pulley, a slide member slidably engaged within said flanges of said body member and suspendingly connected to the lower end of said spring and provided with a plurality of axially aligned pulleys, a sash engaging member, a cord connected to said sash engaging member and rove upon said pulleys on said slide member and cord anchor member, said body member being provided at the lower end with a stop for said sash engaging member, and a housing of inwardly facing U section having outwardly projecting lugs at its upper end releasably engageable when the upper end of said counterbalance flanges and inwardly projecting lugs at its lower end releasably engageable with said stop member.

12. A counterbalance for a sash having a grooved stile comprising an elongated body member adapted to be mounted on a window casing and having inwardly facing way members on its longitudinal edges, a spring hanger mounted on said body member, a coil spring supportedly connected at its upper end to said spring hanger, a pulley support and cord anchor mounted on said body member adjacent the lower end thereof and provided with a pulley, a slide member slidably engaged with said body member and suspendingly connected to the lower end of said spring and provided with a plurality of pulleys, a sash engaging member, and a cord connected to said sash engaging member and rove upon said pulleys on said slide member and cord anchor member, said body member being provided at the lower end with a stop for said sash engaging member.

13. A counterbalance for a sash having a grooved stile comprising an elongated body member adapted to be mounted on a window casing and having inwardly facing way members on its longitudinal edges, a spring hanger mounted on said body member, acoil spring supportedly connected at its upper end to said spring hanger, a pulley support and cord anchor mounted on said body member adjacent the lower end thereof and provided with a pulley, a slide member slidably engagediwith said body member and suspendingly connected to the lower end of said spring and provided with aplurality of pulleys, a sash engaging member, a cord connected to said sash engaging member and rove upon said pulleys on said slide member and cord anchor member, said body member being provided at the lower end with a stop for said sash engaging member, and a housing of inwardly facing U section having outwardly projecting lugs at its upper end releasably engageable when the upper end of said counterbalance flanges and inwardly projecting lugs at its lower end releasably engageable with said stop member.

References Cited in the file of this patent UNITED STATES PATENTS 2,722,723 Mears Nov. 8, 1955 

